byggefirma-overblik.dk is a .dk domain served by 2 nameservers (alaric.ns.cloudflare.com, ruth.ns.cloudflare.com). It was registered on 12 July 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.57.230 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.57.230 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.193.122 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:39e6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:c17a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.57.230,172.67.193.122 ech=AEX+DQBB2QAgACBrJiCgxDw8r2GE4KQ+nN0h6dUo+z/ATq8Dp/3ry9HFNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:39e6,2606:4700:3037::ac43:c17a |
| www | 104.21.57.230 172.67.193.122 2606:4700:3035::6815:39e6 2606:4700:3037::ac43:c17a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network byggefirma-overblik.dk: 104.21.57.230 172.67.193.122 2606:4700:3035::6815:39e6 2606:4700:3037::ac43:c17a (AS13335) www.byggefirma-overblik.dk: 104.21.57.230 172.67.193.122 2606:4700:3035::6815:39e6 2606:4700:3037::ac43:c17a (AS13335) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416529174 |
| Primary NS (MNAME) | alaric.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2017-07-12 |
| Expires | 2027-07-31 (284d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 08:53:52 shown | 538ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-07 12:31:16 | 934ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-03 11:40:35 | 1151ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-26 22:59:59 | 706ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-05 20:52:09 | 911ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-27 05:43:51 | 713ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-25 19:41:00 | 855ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 19:50:49 | 870ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-16 18:10:05 | 414ms | 2 NS 2 A 0 MX | 🔓 Insecure |